To add further security to such locks an security lock box can be used. Inside of these boxes are microprocessors that will allow only certain keys to open them. This makes it harder for criminals to pick the lock. The only way that this type of lock can be opened is by using a key with a microchip that the box will accept.

Next is that whenever you wanted to, you can just change the combination codes if you wanted to secure privacy and safety. With this kind of outlook, you would surely be able to ensure safety because no one will ever have the idea on what pass codes that you have programmed for safe lock box.